Its ongoing decommissioning by Magnox Ltd was expected to take almost 100 years,[3] but in 2021 the Welsh government arranged for the power station to be redeveloped using small-scale reactors.

[11] The setting for the power station which Crowe developed is designated Grade II* on the Cadw/ICOMOS Register of Parks and Gardens of Special Historic Interest in Wales.

[12] Four Paxman 12YLC diesel engines, each driving a 1.2MW Crompton Parkinson alternator were installed for emergency standby duties.

[13] Nuclear flasks were transported to Trawsfynydd on a section of the former Bala to Blaenau Ffestiniog railway that had been closed in January 1961.

A single track was restored northwards with an entirely new line through the centre of Blaenau Ffestiniog that connected to the Conwy Valley branch.

Intermediate level waste – such as on the walls of the cooling ponds or pipes – is being carefully removed using robots over the next decades.

[3] The Welsh government has decided to redevelop the plant using small-scale reactors, as a step toward meeting the UK's targets for reducing carbon emissions.